F-1 Firearms 7.62 DuraBolt full auto AR10 bolt carrier groups Rose Gold (TiCrN)

F-1 Firearms DuraBolt Rose Gold direct impingement full auto rated AR10 bolt carrier group is compatible with DPMS spec large frame receiver sets and associated components. The DuraBolt Rose Gold is enhanced with a Physical Vapor Deposition (PVD) TiCN coating, which gives it an extremely durable and corrosion resistant gold mirror finish. The DurBbolt Gold’s coating also offers excellent lubricity with a 0.20 coefficient of friction.

• Carpenter 158 bolt, ground after heat treat, MPI and HPT
• 9310 steel carrier, ground after heat treat
• Weight 1.12lbs